Concrete mixing plant testing instrument

NegotiableUpdate on 05/06

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

The concrete mixing plant test instrument is driven by a rebound single series motor, with gear reduction, circular column guide rail, and screw lifting manual feed overall design. It has the advantages of small size, compact structure, simple operation, and good grinding quality. The quality of the ground specimen can reach CECO3, 88, YBJ209-86. The technical specification for determining the compressive strength of concrete by drilling core samples requires the quality of the specimen to be ground flat. Therefore, it is widely used for on-site grinding of specimens with core samples.

Product Details

Concrete mixing plant testing instrumentStructure and principle:

1. The structure of the grinding machine is mainly composed of three parts: rebound single-phase serial machine electric, gearbox, grinding head body, column, screw, lifting handle and dial, as well as chassis, fixture, and foot screw. The machine is easy to clamp concrete core samples, has high accuracy, good grinding quality, simple operation, and is safe and reliable.

2. Working principle: This machine relies on a flat grinding head equipped with diamond cutting tools to achieve the end face grinding of concrete core samples at a given speed. The machine adopts a circular column guide rail and a screw lifting manual feeding method to ensure smooth and reliable operation of the grinding head.

Concrete mixing plant testing instrumentMain technical parameters:

1. Grinding concrete core sample diameter (mm): 50, 75, 100, 150

2. Height of ground concrete core sample (mm): 47.5-215

3. Grinding head speed: 250r/min

Grinding head diameter: 170mm

Grinding head end face runout: 0.10mm

4. Rated power of electric power: 1.7Kw

5. Spindle speed: 2800r/min

6. Error of 0.01mm in perpendicularity between fixture square hole and chassis plane

7. Dimensions: 550X420X700mm

8. Weight: Approximately 75Kg

Usage:

1. Select the corresponding fixture based on the diameter of the core sample and firmly clamp it onto the small circular column.

2. Loosen the main body fixing bolt, rotate the screw lifting handle, select the required size, and tighten the dial.

3. Open the inlet valve to allow water to flow, place the splash guard and close the power switch to rotate the grinding head.

4. The main body of the hand is slowly approaching the core sample and starting to sharpen, repeating several times.

5. Loosen the small round column and the ingot screw of the fixture, install the piece firmly in reverse, repeat steps 2, 3, and 4 until the core sample end face meets the requirements.

Operating procedures:

1. Connect the power and water sources.

2. Select the corresponding fixture based on the diameter of the core sample, clamp the core sample and rotate it to the center position of the chassis, then tighten the fixture.

3. Release the upper and lower cable tightening handwheels, rotate the lifting handwheel, and stop when the grinding wheel end face is 1mm away from the core sample end face. Then tighten the cable handle, open the water inlet valve to allow water to flow, and close the power switch to rotate the grinding wheel. Then turn the handwheel counterclockwise and clockwise at the same time to lower the grinding head. When the grinding wheel end surface contacts the sample end surface, swing the grinding head for grinding until the sample end surface is smoothed.

4. After grinding, turn off the power and water nozzle valve, and turn the micro handwheel counterclockwise to the upper limit position.

5. Release the clamp cable handle, remove the clamp together with the sample and install it in reverse. Repeat steps 2, 3, and 4 to grind the other end face. Until the end face of the core sample meets the requirements.

6. After using the grinding machine, turn off the power and wipe the machine clean.